Support for concrete.



medium againstthe cracking effect of heat.

- is of but small cross section forming a neck and other bnl dingmembers of which the pending constructions such as ceilings, etc,

form of my new concrete support showing certain wires thereof 1n dottedline. Fig.2

the city and county -Unless this portion upon the beams etc., be

' faces and in general protection of structural .of an I-beam with .mysupport attached m re D A s 'rarns p PATENT osrion.

501m r. HALLABIAN, or rnrnnnnnrnm, rn'imsY'LvAnm, Assxencn or baa-ms roshorter. ncAnnY, or PHILADELPHIA, rnivnsrnvanm.

1'0 all whom it may comm: 4 it known that 1, JOHN P. HALLA'HA' a citizenof the United States, residing in of. Philadelphia, State ofPennsylvania, have invented a new and useful Support for Concrete, ofwhich then following is a specification.

In the .fire -proofing'o'f buildings and particularly in the protectionof metal work upon smooth surfaces thereof, diflicnlty is experienced inretaining the protecting It is customary to provide layers of concreteor other -fire resistant benea'th'beams etc, to

prevent flame from attackiii the parts di-, rectly and there must be ullprotection against attack from beneath because of the general upwardmovement of the fire and resultant heat. The support of the fireresistmg medium has proved a difiicult matter.

of excessive width its connection with the concrete or other fireresisting medium above or necks at the edges of the beam which e purposeofmy invention is primarily to provide for the proper support of thisconcrete facin for beams, structural shapes beam is here merely taken asa. type and to protectagainst the fall of the facing, in case ofcracking of the portion by which the material is connected with thatufpon the upper side of the beam. This is 0 course .-"but a sin leinstanceof utility of my invention. ile my invention finds its greatestusefulness in the support of the concrete or other facing beneath thebeam, it manifestly is advantageous also in support of other dcandfacings for all relatively smooth surmetal against fire.

Figure 1 represents in perspective, one

represents in vertical section, an I-beam sup-- plied with the same formof my invention with concrete in place. Fig.3 represents in perspective,and in partial section, a portion thereto, retaining reticulated metalfor ceilmg use. F g. 4 represents in cross section, a

I Specification of Iletters Patent. Application n1ed Aprii.13, 1Sl37.Serial in. 368,073.

-svrrom son consents.

Patented May 24,1910.

composite beam my supports.

Similar numerals of reference indicate coi'res onding parts in thefigures. Re erring to the drawings, in constructions where it is desiredto protect beams and other building. members which I have typitied in liifigs. 1 and 3 bye-n I-b'eam, there has been d' culty in retaining asufficient amount of concrete or other rotective mate rial around thebottom of t e beam or. as a facing or protection where used. Thephysical strength of the concrete is sufiicint to retain it under normalconditions but under the influence of heat the material relied upon forprotection is cracked away from the metal to lab prgitected, By-myinvention 1 present aflongitudinal support in as close proximity as maybe desired to the beam, girder or other member to be protected with theresultthat my transverse supports and longitudinal /wires themselvesperform the duty of, "retaining the facing or other protection in,case'its'otherpneans of retention fail or be omitted.

While I have illustrated my invention as applied ,to I-beams andcomposite girders, it will be evident that it is applicable to all typesof beams, girders and'other structural nictal and that itx'is applicableto vertical and inclined as well as horizontal protection wherever tlei-cis likelihood of the protective material cracking away and where itdoes ,not ha'vedirect and immediate support.

1 designates a beam which may be of any suitable forn'ii I have shown itin Figs. 2 and 3- as an I-beani and particularly referred to theapplication of the concrete to ,illG- soiiit 2 thereof.

'3/tlesi'gnates a support for-the concrete which is formed niostdesirably of two mem bers. One of these-consists of a bar or clip 4having a hooked end 5 and the otherend preferably initially straight.This'clip' 4 is most desirably formed of wire or of a strip which may bereadily. bent at the straight end to engage with the opposite with whichthe hooked end engaged.

The second member which I term a hook sideof a flange or soiiit, such as2, to that supplied with-aplurality of herein consists of :1 dependingdouble hook arranged to'be'supported by the bar 4 and. to supportwires-or strips, substantially parallel to the beam in'itsjoubl'ehookmembers. Its eyes 6 surround the rod 4 which is prefand t the oooperatewith the extensions 9 by whlch the books 10 are. cgznnected with theeyes 6 in such a we, asto" ,-pre vent disengement of the bar fromtheeyes 6 in any other than a longitudinal direction.

. from a, singletpiece of wire e it is, as indicated not necessary thatthese eyes be thus cldsedsufiicientlyto prevent sidewise withdrawal ofthe bar or clip; in which case these socalled eyes might per-f ed hooks,the eye form is preferred. For "convenience,

haps more accurately he cal and to distinguish from the terminalhooks, Itherefore uniformly call these interme diate parts engaging withthe baror clip eyes designate them whether theybe' closed-or not. The hooks 10'are completed by. torminals 11 which I have illustrated as pro-' videdwith humps but which may evidently 'be of an desired shape. Thdchiefadvantage 1D. aving the hump is to'more completely insure againstaccidental disengage-- ment of the wires 12 during the placing of theco'ncretefor other facing. In the present instance the parts 6, 7, 8, 9,10 and 11 of which all are doubleex'ceptt 8 aremade ut they may erwiseformed and. may be evidently-be 0 suitable strip' of whatever made froman cross section. Ihe hooks evidently need not be turned outwardly, asshown with-respect to arts 9. The wires 12 are arranged longitn inall ofthe member to be protected and are rea ilyinsertible into the open endsof the hooks past the-hum s when these are used, so as to be seat I inthe position shown in the figures. When the support and longitudinalwires, rods or strips 12; have been put in place, the structure issurrounded by a; suitable form and the concrete or other protectingmedium is set'in place, after whicu the form is removed, as in thepresent practice.

T e clip 4-. can be made of a single standand length for a large numberof sizes of I- beams, Inasmuch as the sofiit 2 of the I-beam varies butslightly in width with large differences in the'hei ht ofthe I-beam.There is corresponding 'iferen'ce in the amount of the end 13 turned butthis does not aifect the ultimate construction as completed.

In Fig. 3 I have illustrated how my support may be used also as aceilingsupport showing reticulated metal 14, of which the ceiling ispartly composed, supported upon the rods or wires 12. This does notprevent use of mfy invention to carry out its main purpose 0 fireprotection for structural iron and steel as thebeam sofiit can be bodyportion 8 of such shape that y the same in the claims, intending'thusto' protected by concrete reinforced by port and longitudinal rods-withsome a vantage notwithstanding the reticulated metal though without asgreat advanta e as in its absence; This figure merely a ows one use ofwhich my invention is capable but not the most desirable thereof. I

In Fig. 4 I have shown my construction as applied to a composite beamhaving flan '15 of much greater width'than fordina' y occurs with theI-beam. I provide- (proper le'n type of clip 'of therefor an support'the ad tional wi t pi facing '-by us1ng arplurality of my hook.nremh'ers upon the 011p .4, using w hatever number and spacing thereofas may be de- "slr'able or necessary.- The composite-beam 16' is thussuitably protected by a facing embody gthe supports at such intervals asmay be desired. I

My vention consists not only in the supporter-reinforcement of whichImake ,use'

ut .alsoiin its-combination with the pro tective material and with thestructural me-fial I y It-will be apparent that various changes mayf'bem ade by those skilled in this art whichmay come within thescope of .my

invention and I do not desire to e limited in every instance to' theexact construction herein shown and described. Having'thus described myinvention, what ters Patent,is: Y a j;

1. In a su port for fire proofin structural material wireslongitudinally disposed with reference to the same and in proximitythereto, a cli cooperating with the face of the metal and a double hookg'votally connected at a luralityof space points-with said clip ansupportin said wires.

2. In a support for -I claim as'new and desire to secure by Let.-

re proofing and as an article of manufacture,'an 0 en ended clip incombination with a doub e depending hook havin 3. As an article ofmanufacture, a clip intermediate spaced ey s. surrounding sai firstmentioned clip.

initially having one end straight and the other end bent, in combinationwith a wire support of a single piece of wire comprisin terminal hooksand intermediate space eyes for engagement with the clip. .4. In a suport for fire proofing aridjas an article 0 manufacture, a clip forengagement with the facin to be protected in combination with a doub ehook compnsmg terminal open book members and intermediate spaced e es ofa single piece for engagement with t cliiip.

5. In a support; for re proofing for structural shapes, a clip forengagement with the shape whose face 1s to be protected, wiressubstantially parallel with the, said face, and

a hook for supporting said wires from the clip, and comprising, a pairof terminal hooks, and e es spaced by an intermediate bar for mova leengagement with the clip. t

6. The combination with flanged beams, of main supporting memberscomprising wires. having their ends bent to form 0 ensided eyes withprojecting ends exten in substantially toward'each other and a'da ted toengage and be frictionally supporte by the flanges of said beams,supplemental supporting members having open-sided eyes and hooked pcr,ions for engagement with the main sup orting members, and reinforcingrods 0 bars carried by the hooked portions of said supplemental membersand disposed in the open-sided eyesof the same.

7. The combination with flanged beams,

.of main supporting members comprising wires having their ends bent toform opensided eyes with prdj sting ends extending substantially towardeach other and adapted to engage and be frictionally support by theflanges of said beams, supplemental su'pporting members havingopen-sided eyes and hooked portions for engagement with the mainsupportin members, reinforcing rods or bars carried y the hooked ortionsof said supplemental members and A isposed 1n the open-sided eyes of thesame, andshoulders formed by contracting the throats of said eyes toprovide a space less in width than the diameter of the rods whereby thelatter may be retained in place and spaced from the beams. Y

' JOHN P. HALLAHAN.

Witnesses:

J .,RALPH NAGLE, J No. D. SHELTON.

